5급 복합레진충전된 치아에 있어서의 계면조건과 유지구의 영향에 대한 2차원유한요소법적 연구
TWO-DIMENSIONAL FINITE ELEMENT ANALYSIS ON THE EFFECT OF INTERFACE CONDITION AND RETENTION GROOVE IN CLASS V COMPOSITE RESIN RESTORATION
조병훈, 유현미, 김동호,
소속 상세정보
조병훈 ( ) - 서울대학교 치과대학 치과보존학교실
유현미 ( ) - 삼성의료원
김동호 ( ) - 생산기술연구원 산업기술교육센터
KMID : 0362319980230020639
Abstract
To evaluate the effect of interface conditions and retention grooves in the Class V composite resin restoration of the maxillary first premolar, the distribution of the values of stress and displacement was analyzed with the two-dimensional finite element method.
The results were obtained as follows:
1. Boundary elements and Stiffness values could be used as the interface parameters in the finite element method.
2. The amount of restriction of the displacement at the cervical margin by placing a retention groove at the cervical wall was about three times as high as that by placing a retention groove at the occlusal wall.
3. Because of the relative amount of tensile components of the stress values in the buccolingual direction, the possibility of dislocation of the restoration was much higher at the cervical margin than at the occlusal margin.
4. It might be recommended that both occlusal and cervical retention grooves be used routinely, but if one, it be placed at the cervical wall.
키워드
유한요소법;계면변수;유지구;응력;변위;Finite element method; Interface parameter; Retention groove; Stress; Displacement
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